111111100111101 has 8 divisors (see below), whose sum is σ = 148153732745760. Its totient is φ = 74071267108592.

The previous prime is 111111100111087. The next prime is 111111100111111. The reversal of 111111100111101 is 101111001111111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111111100111101 - 2⁷ = 111111100110973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111111100111111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699815430 + ... + 699974183.

It is an arithmetic number, because the mean of its divisors is an integer number (18519216593220).

Almost surely, 2^{111111100111101} is an apocalyptic number.

It is an amenable number.

111111100111101 is a deficient number, since it is larger than the sum of its proper divisors (37042632634659).

111111100111101 is a wasteful number, since it uses less digits than its factorization.

111111100111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399816075.

The product of its (nonzero) digits is 1, while the sum is 12.

Adding to 111111100111101 its reverse (101111001111111), we get a palindrome (212222101222212).

The spelling of 111111100111101 in words is "one hundred eleven trillion, one hundred eleven billion, one hundred million, one hundred eleven thousand, one hundred one".